eXchange series. Wendell Logan: Runagate, Runagate; Coleridge-Taylor Perkinson: Toccata; Statements, Sonata No.2 for Piano; Tania Leon: A La Par; David Baker: Through the Vale of Tears, Lawrence Conservatory Contemporary Music Ensemble. This program of solo and ensemble works by African American composers is drawn from a Martin Luther King holiday concert in 1997. The virtuoso performances are by members of the faculty and students from the Conservatory of Music at Lawrence University in Appleton, Wisconsin